Edward James Olmos is an American actor and director. He is best known for his roles as Detective Gaff in Blade Runner (1982) and its sequel Blade Runner 2049 (2017), Lieutenant Martin "Marty" Castillo in Miami Vice (1984–1989), high school math teacher Jaime Escalante in Stand and Deliver (1988), Montoya Santana in American Me (1992), and William Adama in the reimagined Battlestar Galactica (2004–2009).